Automatic wagon-brake.



'L. W. DEDRICK.

AUTOMATIC WAGON BRAKE.

APPLICATION FILED NOV. 29. m3.

Patented May16,1916.

gwue/wfoz THE poLuMllA PIANOGRAPH c0.. WASHINGTON, D. c.

Q ordinary wagon 0 dinary manner.

UNITED STATES PATENT orFIoE.

LLOYD W. DEDRIQK, OF PUTNAM, NEW YORK.

AUTOMATIC WAGON-BRAKE.

Application filed November 29,1913.

To all whom it may concern:

Be it known that I, LLoYD W. DEDRICK, a citizen of the United States,residing at Putnam, in the county of \Vashington and State of New York,have invented certain new and useful Improvements in AutomaticVTagon-Brakes, of which the following is a specification. v V

This invention relatejsto automatic wagon brakes and more particularlyto thattype in which the brake shoes are automatically. thrown intocontact with the wagon or veh1-:

cle wheels by the holding back operation of the horses in descending ahill.

A principal object of this invention is to provide a device of thischaracter in which the brake is immediately applied by the action of thehorses, the brake shoes being of such a construction as to be thrown outof frictional engagement with the wheels when the wheels are travelingreversely for backing the vehicle or wagon.v

Other objects as well as the nature, characteristic features and scopeof my invention will be more readily understood from the followingdescription taken in connection with the accompanying drawings andpointed out in the claim forming a part of this specification.

Referring to the drawings :Figure 1 is a top plan view of a wagon brakeconstructed in accordance with my invention illustrating the applicationthereof; Fig. 2 is a longitudinal sectional view of the same; Fig. 3 isa detail enlarged sectional view of one of the brake shoes showing themanner in which the same is connected to the brake beam; Fig. 1 is adetail enlarged top plan view showing the manner in which one of A theoperating rods is connected with the ac- In the drawings wherein isillustrated the preferred embodiment of this invention, an

is provided which comprises front and rear axles 6 having wheels 7mounted on the opposite ends thereof and provided with front and rearhounds 8 which are connected by a reach 9 in the or- A tongue 10 isarranged in the front hound 8 in the usual manner and is secured theretoby a pin or bolt 11. The tongue is longitudinally recessed or slotted asindicated at 12 and shown to advantage in Fig. 2, and has a ferrule 13slidably mounted thereon, which is in engage- Specification of LettersPatent.

Patented May 16, 1916.

SerialNo. 803,811.

is curved to provide a hook 15 which is in;

engagement with the ferrule 13 adjacent the inner end of the latter asadvantageously illustrated in Fig. 5, the opposite end of said rod beingcurved to provide a hook 16 whiclr is in engagement with one end of alink 17, the opposite end of the latter being bifurcated and pivotallyengaged with a second link 18. The link: 18 is pivotally engaged with alever 19, the latterbeing pivoted approximately midway its ends on thepin or bolt 11.and adapted to be rocked by the operation of the rod 14:to impart motion to a second actuating rod as indicated at 20, saidactuating rod having the extreme rear end thereof engagedwith a lever 21identical with the lever 19, the lever 21 being pivotally engaged, at 22to the reach 9 and having its upper end in engagement with a brace rodor yoke member 23, the latter having the opposite ends thereofdetachably engaged with the brake beam 24.

Brake shoes 25 are detachably associated through the medium of bolts 26and thumb nuts 27 to the opposite ends of the brake beam 24, each of thebrake shoes'having the upper ends thereof enlarged and the lower endtapering so as to provide an arcuate contacting face 28 whereby toprevent the frictional'engagement of said face with the vehicle wheelwhen the wagon is being backed with a consequent reverse movement to thewheels. 1

Integrally formed on the link 17 and extending at a substantially rightangle to the bodythereof is an arm or lug 29 which may be used as a footlever for facilitating the disengaging of the brake shoes 25 fromengagement with the rear wheels 7 by merely exerting pressure thereon soas to cause the lever 19 to be actuated on its pivot 11. In order toretain the actuating rod 14 in the recess12 a guard 30 is provided whichin the present instance comprises a metallic strap In operation the neckyoke is engaged with the ferrule 13 in a suitable manner, the neck yokein turn being in connection with the collars of the horses therebycausing pressure to be exerted on the ferrule 13 so as to actuate thesame on the tongue 10 when descending a hill or the like therebyimparting movement to the rod 14 causing the same to be operatedrearwardly and causing power to be communicated to the rod 20 so as tothrow the brake shoes 25 in engagement with the wheels 7 by theactuation of the mechanism heretofore pointed out. When it is desired toback the wagon, it is seen that pressure will likewise be eX- erted onthe ferrule 13 causing the same to be actuated rearwardly on the tongue10 so as to impart movement to the rods 14 and 20 for actuating theshoes 25, but in view of the peculiar formation of shoes as used in thepresent instance the shoes instead of being frictionally engaged withthe outer periphery of the wheels 7 are sufficiently disengagedtherefrom so as to prevent the locking of the Wheels for retarding thecourse of the vehicle.

It will be understood that the above description and accompanyingdrawings comprehend only the general and preferred embodiment of myinvention and that various minor changes in details of construction,

proportion and arrangement of the parts may be made within the scope ofthe appended claim and without sacrificing any of the advantages of myinvention.

Having thus fully described my invention what I claim as new and desireto secure by Letters Patent is A wagon brake including a rod extendinglongitudinally of the wagon tongue and connected at one end to a ferruleslidably mounted on the tongue, the opposite end thereof bent to form ahook, a link having an aperture in one end to receive the hook and theopposite end yoked, a foot operating means connected to the link, asecond link pivotally connected to yoked end, of the first link, anditself having a yoked end and means associated with said second link foroperating the brake beam.

In testimony whereof I afiix my signature in presence of two witnesses.

LLOYD W. DEDRICK. Witnesses:

SALQMIE WEBSTER, LUCY J. DEDRICK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

